KR100260801B1 - Apparatus for punching a bead in turn-up process of tire in a car - Google Patents

Apparatus for punching a bead in turn-up process of tire in a car Download PDF

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Publication number
KR100260801B1
KR100260801B1 KR1019980015104A KR19980015104A KR100260801B1 KR 100260801 B1 KR100260801 B1 KR 100260801B1 KR 1019980015104 A KR1019980015104 A KR 1019980015104A KR 19980015104 A KR19980015104 A KR 19980015104A KR 100260801 B1 KR100260801 B1 KR 100260801B1
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KR
South Korea
Prior art keywords
bead
turn
ring
tire
guide plate
Prior art date
Application number
KR1019980015104A
Other languages
Korean (ko)
Other versions
KR19990081259A (en
Inventor
이완형
최경성
나수항
Original Assignee
이완형
주식회사홍성공업
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Publication date
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Priority to KR1019980015104A priority Critical patent/KR100260801B1/en
Publication of KR19990081259A publication Critical patent/KR19990081259A/en
Application granted granted Critical
Publication of KR100260801B1 publication Critical patent/KR100260801B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/32—Fitting the bead-rings or bead-cores; Folding the textile layers around the rings or cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/0084—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/24—Drums
    • B29D30/242—Drums for manufacturing substantially cylindrical tyre components without cores or beads, e.g. treads or belts
    • B29D30/243—Drums for manufacturing substantially cylindrical tyre components without cores or beads, e.g. treads or belts and with mechanisms for folding layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/24—Drums
    • B29D30/26—Accessories or details, e.g. membranes, transfer rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/24—Drums
    • B29D30/26—Accessories or details, e.g. membranes, transfer rings
    • B29D2030/2614—Bladders associated with the building drum, e.g. bladders used for the toroidal expansion, bladders for turning-up the plies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/30—Applying the layers; Guiding or stretching the layers during application
    • B29D2030/3064—Details, accessories and auxiliary operations not otherwise provided for
    • B29D2030/3071—Venting air inclusions during the layer applications, e.g. by creating grooves, channels, passages, holes in the band-like tire component to be applied
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/32—Fitting the bead-rings or bead-cores; Folding the textile layers around the rings or cores
    • B29D2030/3221—Folding over means, e.g. bladders or rigid arms
    • B29D2030/3228—Folding over means, e.g. bladders or rigid arms using one bladder acting on each side of the drum

Abstract

PURPOSE: A device for perforating a bead in turn-up process of a car tire is provided to retain the original form of a bead by emitting air included on each layer of a contacting portion of a bead portion and tire materials with carrying out working of perforating in the turn-up process. CONSTITUTION: The device for perforating a bead in turn-up process of a car tire includes a turn-up ring(11), a guide plate(1), a projection portion(112), a guide axis(13), pin grooves(111, 121), a turn-up ring(11), a bead ring(12), a support plate(2), a cylinder(3), a fixing tool(32) and bead pins(21). The turn-up ring(11) is installed on the guide plate(1) and has the projection portion(112) guided to the guide axis(13) and the pin groove(111). The bead ring(12) is installed in the turn-up ring(11) and has the pin groove(121). The cylinder(3) is installed on the outside of the guide plate(1). The support plate(2) is connected to the supporter(31) fixed to the cylinder(3) with the fixing tool(32) and is united with the guide plate(1) and the guide axis(13). Many bead pins(21) are installed on the support plate(2) and go through the pin groove(111) of the turn-up ring(11) and the pin groove(121) of the bead ring(12).

Description

자동차 타이어의 턴업공정시 비드 천공장치(An apparatus for punching a bead in turn-up process of tire in a car)An apparatus for punching a bead in turn-up process of tire in a car

본 발명은 자동차 타이어 제조에서 턴업 공정(Turn-up process)시 비드의 천공장치에 관한 것으로서, 구체적으로는 결합된 비드(Bead)와 에이펙스(Apex)를 타이어의 재료로 감싸는 공정(턴업 공정)에서 비드와 타이어 재료의 접촉부위에 포함되는 에어를 제거하기 위하여 타이어의 재료를 감싸는 공정시 가이드 플레이트에 장착된 공압 실린더에 의하여 받침 플레이트에 설치된 비드 핀으로 비드부를 천공함으로서 타이어 재료와 비드부의 접촉부위의 층에 포함되는 에어를 배출하도록 하여 비드의 위치불량을 감소하도록 하는 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a device for drilling beads in a turn-up process in automobile tire manufacturing. Specifically, the present invention relates to a process of wrapping a combined bead and apex with a tire material (turn-up process). In order to remove the air contained in the contact portion of the bead and tire material, in the process of wrapping the tire material, the bead pin installed on the backing plate is drilled by a pneumatic cylinder mounted on the guide plate, so that the contact portion of the tire material and the bead portion is drilled. It is to discharge the air contained in the layer to reduce the misplacement of the beads.

일반적인 자동차 타이어의 제조공정에 있어서는, 원재료를 정련하고 정련된 재료를 압연이나 압출하여 차종에 맞도록 재단한다. 그리고 비드에 충격완화용 에이펙스를 연결한 다음 비드와 에이펙스를 보호하기 위한 플리퍼를 도포한 후 재단된 재료를 연결된 비드와 에이펙스를 감싸도록하여 성형한 후 가류하여 제조되는 것이다.In a general automobile tire manufacturing process, raw materials are refined, and the refined materials are rolled or extruded and cut to fit the vehicle model. Then, after connecting the shock-absorbing apex to the bead and then applying a flipper to protect the bead and the apex, the cut material is manufactured by wrapping the connected bead and the apex and then vulcanizing it.

도 5는 타이어의 비드와 접착된 에이펙스를 도시한 것으로서, 비드(51)는 여러가닥의 철심(511)을 일정한 간격으로 배열하여 강성을 유지하기 위한 것이며, 이 비드(51)는 타이어 원형을 유지하는 것이고, 충격완화용으로 사용되며 끝단으로 좁아지는 에이펙스(52)가 접촉되어 결합되어진다. 비드(51)와 에이펙스(52)의 주위로는 플리퍼(Flipper)(53)가 둘러 쌓이도록 하여 성형작업 중 비드(51)의 철심(511)배열을 유지하며 외부의 영향으로부터 비드(51)와 에이펙스(52)를 보호하는 것이다.FIG. 5 shows the apex bonded to the bead of the tire, and the beads 51 are arranged to maintain rigidity by arranging multiple strands of iron cores 511 at regular intervals, and the beads 51 maintain a tire shape. The apex 52, which is used for the impact mitigation and narrows to the end, is contacted and coupled. The flipper 53 is enclosed around the bead 51 and the apex 52 to maintain the arrangement of the iron cores 511 of the bead 51 during the molding operation, and It is to protect the apex (52).

도 6은 비드와 에이펙스가 접착되어진 후 접착된 비드와 에이펙스(이하 "비드부"라 한다)에 타이어 재료로 가류한 상태를 도시한 것으로서, 도시한 바와 같이 비드부(5)를 포함한 부분은 볼록한 형태를 유지하고 상단으로는 타이어(4)의 무늬(41)가 형성되어 진다.FIG. 6 shows a state in which the beads and the apex are bonded to the bonded beads and the apex (hereinafter referred to as "bead parts") after being bonded with a tire material, and the portion including the bead part 5 is convex as shown. The shape 41 of the tire 4 is formed at the top while maintaining the shape.

도 7의 (a),(b),(c),(d)는 타이어 제조공정 중 턴업공정을 도시한 것으로서, 도시한 바와 같이 드럼(6)에 올려진 브레더(Bladder)(61)에 타이어 재료(4)를 위치시킨 후, 이 타이어 재료(4) 상단에 비드부(5)를 위치시킨다. 그리고 브레더(61)를 부풀리면서 턴업 링의 돌출부(112)를 드럼(6)쪽으로 밀게되면 타이어 재료(4)의 끝단은 턴업 링의 돌출부(112)의 테이퍼 형상에 서서히 밀려 비드부(5)를 감싸면서 압착되는 것이다. 비드부(5)를 타이어 재료(4)로 압착한 후 브레더(61)를 원상태로 회복하고 텅업 링을 복귀시켜 작업을 완료하는 것이다.(A), (b), (c), and (d) of FIG. 7 illustrate a turn-up process in a tire manufacturing process, and as shown in the bladder 61 mounted on the drum 6 as shown. After the tire material 4 is positioned, the bead portion 5 is placed on the top of the tire material 4. Then, the inflator 112 of the turn-up ring is pushed toward the drum 6 while the breather 61 is inflated, and the end of the tire material 4 is gradually pushed into the tapered shape of the protrusion 112 of the turn-up ring, thereby forming the bead part 5. Will be wrapped while wrapping. After the bead part 5 is compressed with the tire material 4, the breather 61 is restored to its original state and the tongue-up ring is returned to complete the work.

이와 같이 제조되어지는 타이어의 제조공정에 있어서, 비드부에 배열된 철심은 일정한 간격을 유지하고 배열된 원형을 유지하는 것이 중요하다. 그러나 종래 타이어 제조에 있어서는 이 비드부를 타이어의 재료로 감싸는 턴업공정에서 비드부와 타이어 재료의 접촉부위에서 층을 형성하게되고, 이 층의 사이로는 에어가 차는 경우가 발생하였다. 에어가 각층 사이에 차 있는 상태에서 턴업공정을 수행하는 경우 내부에 찬 에어로 인하여 비드부의 철심배열이 흐트러지게되는 문제점을 보완하기 위하여, 에어를 배출하기 위한 종래방식은 펀치등을 사용하여 작업자가 임의로 비드부에 수작업으로 여러번의 천공을 하여 에어를 배출하는 비효율적인 작업을 수행함으로서 작업능률의 저하를 가져오며 충만된 에어를 완전하게 빼내기가 못하여 비드의 위치가 불량해지는 문제점이 있었다.In the tire manufacturing process manufactured as described above, it is important that the iron cores arranged in the bead portion maintain a constant interval and maintain the arranged circular shape. However, in the conventional tire manufacturing, a layer is formed at the contact portion between the bead portion and the tire material in a turn-up step of wrapping the bead portion with the tire material, and air may be filled between the layers. When the turn-up process is performed while the air is filled between layers, the conventional method for discharging air is to use a punch or the like. By performing an inefficient operation of discharging air by manually drilling several times in the bead portion, there is a problem in that the position of the bead is poor because the operation efficiency is lowered and the filled air cannot be completely removed.

본 발명은 상기와 같은 종래의 문제점을 개선하기 위한 것으로 본 발명의 목적은 타이어의 턴업공정시 비드부에 천공작업을 동시에 수행하여 비드부와 타이어 재료의 접촉부의 각층에 포함되는 에어를 배출하도록 하여 비드의 위치가 원형을 유지할 수 있도록 하는 것이다.The object of the present invention is to improve the conventional problems as described above, the object of the present invention to simultaneously perform the drilling operation on the bead portion during the turn-up process of the tire to discharge the air contained in each layer of the bead portion and the contact portion of the tire material The position of the beads is to keep the circle.

상기와 같은 목적을 달성하기 위하여 본 발명은 타이어 비드부의 천공장치에 있어서, 가이드 플레이트에 설치되며 가이드 축으로 안내되어 좌우로 슬라이딩되는 돌출부와 핀 홀을 구비한 턴업 링과, 이 턴업 링의 내부로 설치되며 핀 홀을 구비한 비드 링과, 상기 가이드 플레이트의 외측으로 설치되는 실린더와, 이 실린더에 고정수단으로 고정되는 지지대에 연결되어 상기 가이드 플레이트와 가이드 축으로 결합되는 받침 플레이트와, 이 받침 플레이트에 설치되며 상기 실린더의 작동에 연계되어 턴업 링의 핀 홀과 비드 링의 핀 홀을 관통하는 다수의 비드 핀으로 구성되는 것이다.In order to achieve the above object, the present invention provides a punching device for a tire bead part, the turn-up ring having a protrusion and a pin hole installed on the guide plate and guided by the guide shaft and sliding left and right, and into the inside of the turn-up ring. A bead ring provided with a pin hole, a cylinder installed outside of the guide plate, a support plate connected to a support fixed to the cylinder by fixing means, and a support plate coupled to the guide plate and the support plate; And a plurality of bead pins connected to the operation of the cylinder and penetrating through the pin holes of the turn-up ring and the pin holes of the bead ring.

도 1은 본 발명 비드 천공장치의 정면도1 is a front view of the bead drilling apparatus of the present invention

도 2는 도 1에서 A-A선 단면도2 is a cross-sectional view taken along the line A-A in FIG.

도 3은 비드 천공장치의 작동전 상태3 is a state before operation of the bead drilling apparatus

도 4는 본 발명비드 천공작업시 록킹 상태도Figure 4 is a locking state when the bead drilling operation of the present invention

도 5는 타이어의 비드와 접착된 에이펙스5 is an apex bonded to the bead of the tire.

도 6은 제조된 타이어의 성형상태도6 is a molding state of the manufactured tire

도 7의 (a),(b),(c),(d)는 타이어 제조공정 중 턴업공정 순서도Figure 7 (a), (b), (c), (d) is a turn-up flow chart of the tire manufacturing process

<도면의 주요부분에 대한 부호 설명><Description of Signs of Major Parts of Drawings>

1 : 가이드 플레이트1: guide plate

11 : 턴업 링 12 : 비드 링 13 : 가이드 축11 turn-up ring 12 bead ring 13 guide shaft

111,121 : 핀 홀 112 : 돌출부111,121: pinhole 112: protrusion

2 : 받침 플레이트2: supporting plate

21 : 비드 핀21: Bead Pin

3 : 실린더3: cylinder

31 : 지지대 32 : 고정수단31: support 32: fixing means

4 : 타이어 재료4: tire material

41 : 무늬41: pattern

5 : 비드부5: bead part

51 : 비드 52 : 에이펙스 53 : 플리퍼51: Bead 52: Apex 53: Flipper

511 : 철심511: iron core

6 : 드럼6: drum

61 : 브레더61: Breather

7 : 록킹장치7: locking device

71 : 스토퍼71: stopper

이하 본 발명 자동차 타이어의 턴업공정시 비드 천공장치에 대하여 첨부도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, the bead drilling apparatus in the turn-up process of the automobile tire of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명 비드 천공장치의 정면도로서, 비드 천공장치는 다수의 비드 핀(21)이 받침 플레이트(2)에 원주형으로 설치되며, 받침 플레이트(2)는 가이드 축(13)으로 가이드 플레이트(1)에 체결되며, 가이드 플레이트(1)의 상하로 설치되는 실린더(3)는 지지대(31)에 연결되며, 이 지지대(31)는 받침 플레이트(2)에 고정되도록 되어 있다. 그리고 천공장치의 좌우로는 록킹장치(7)가 설치되어 있다.1 is a front view of the bead drilling apparatus of the present invention, the bead fabrication device is a plurality of bead pins 21 are installed in a columnar shape on the support plate (2), the support plate (2) is a guide plate with a guide shaft (13) The cylinder 3, which is fastened to (1) and installed above and below the guide plate 1, is connected to the support 31, and the support 31 is fixed to the support plate 2. The locking device 7 is provided on the left and right sides of the punching device.

도 2는 도 1에서 A-A선 단면도로서, 도시한 바와 같이 가이드 플레이트(1)의 내부로 가이드 축(13)으로 안내되어 좌우로 슬라이딩되는 돌출부(112)와 핀 홀(111)이 형성된 턴업 링(11)이 설치되고, 이 턴업 링(11)과 접촉되어 핀 홀(121)을 형성한 비드 링(12)이 설치되며, 가이드 플레이트(1)의 외측으로는 가이드 플레이트(1)에 고정되는 실린더(3)가 설치되며, 이 실린더(3)에 지지대(31)의 일측이 고정수단(32)으로 고정되고 지지대(31)의 타측은 받침 플레이트(2)에 고정되어 진다. 받침 플레이트(2)는 가이드 플레이트(1)와 가이드 축(13)으로 결합되어지고 비드 핀(21)은 받침 플레이트(2)에 설치되어 턴업 링(11)의 핀 홀(111)과 비드 링(12)의 핀 홀(121)을 관통하도록 되어 있다.FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, and as shown in FIG. 1, a turn-up ring having a protrusion 112 and a pin hole 111, which are guided to the guide shaft 13 and slide left and right, is formed in the guide plate 1. 11) is installed, a bead ring 12 in contact with the turn-up ring 11 to form a pin hole 121 is installed, the cylinder fixed to the guide plate (1) outside the guide plate (1) (3) is installed, one side of the support 31 is fixed to the cylinder 3 by the fixing means 32 and the other side of the support 31 is fixed to the support plate (2). The support plate 2 is coupled to the guide plate 1 and the guide shaft 13, and the bead pin 21 is installed in the support plate 2 so that the pin hole 111 and the bead ring of the turn-up ring 11 ( It penetrates through the pinhole 121 of 12).

이하에서는 상기와 같이 구성되어진 본 발명 타이어 비드 천공장치의 작용을 설명하면 다음과 같다.Hereinafter, the operation of the tire bead drilling apparatus of the present invention configured as described above is as follows.

도 3은 비드 천공장치의 작동전 상태를 도시한 것으로서, 도시한 바와 같이 비드 천공장치는 실린더(3)의 작동으로 지지대(31)와 체결된 받침 플레이트(2)가 슬라이딩하여 가이드 플레이트(1)로 근접함에 따라 받침 플레이트(2)에 설치되어진 비드 핀(21)이 턴업 링(11)과 비드 링(12)의 핀 홀을 관통하면서 타이어의 비드부(5)를 천공하는 것이다.3 is a view illustrating a state before the bead drilling apparatus, and as shown, the bead drilling machine slides the support plate 2 engaged with the support 31 by the operation of the cylinder 3 so that the guide plate 1 slides. As the bead pin 21 installed in the backing plate 2 passes through the pin hole of the turn-up ring 11 and the bead ring 12, the bead part 5 of the tire is drilled.

이를 타이어의 턴업공정과 연계하여 설명하면, 드럼(6)에 올려진 브레더(61)를 도 6에서 도시한 바와 같이 부풀리면서 가이드 플레이트(1)에 설치되어진 턴업 링(11)을 슬라이딩 시키면 턴업 링(11)의 돌출부(112)가 타이어 재료(4)를 슬라이딩 방향으로 밀게되어 타이어 재료(4)는 비드부(5)를 감싸게 되어진다. 턴업 링(11)을 원 위치로 복귀하고, 브레더(61)가 원래되로 축소되도록 한 후, 공압실린더(3)의 작동으로 지지대(31)에 연결된 받침 플레이트(2)가 가이드 축(13)에 안내되어 도 3에서와 같이 드럼(6)쪽으로 슬라이딩 되고 따라서 비드 핀(21)은 핀 홀(111,121)을 통하여 돌출된 상태에서 턴업 링(11)이 전진하면서 다수의 비드 핀(21)이 비드부(5)를 천공함으로서 비드부(5)에 포함된 에어를 방출하도록 하는 것이다.If this is described in connection with the turn-up process of the tire, sliding the turn-up ring 11 installed on the guide plate 1 while inflating the breather 61 mounted on the drum 6 as shown in FIG. The protrusion 112 of the ring 11 pushes the tire material 4 in the sliding direction so that the tire material 4 surrounds the bead portion 5. After the turn-up ring 11 is returned to its original position and the breather 61 is reduced to the original position, the supporting plate 2 connected to the support 31 by the operation of the pneumatic cylinder 3 is connected to the guide shaft 13. 3, the bead pin 21 slides toward the drum 6 as shown in FIG. 3, and thus, the bead pin 21 protrudes through the pin holes 111 and 121 while the bead pins 21 are advanced. By drilling the bead portion 5 is to release the air contained in the bead portion (5).

그리고 도 4에서 도시한 바와 같이 록킹 장치는 비드 핀(21)이 돌출되어진 상태에서 비드부(5)의 천공작업시 반제품 고무에 억지로 천공작업을 가하는 데 공압실린더(3)의 힘으로는 밀린 것이 예상되어 천공작업동안 뒤로 밀려남을 방지하기 위하여 록킹장치(7)의 스토퍼(71)를 받침 플레이트(2)의 후면을 받치도록 하는 것이다.And as shown in Figure 4 the locking device is pushed by the force of the pneumatic cylinder (3) for forcing the semi-finished rubber during the drilling operation of the bead portion 5 in the state in which the bead pin 21 is protruded It is anticipated to support the stopper 71 of the locking device 7 against the back of the backing plate 2 to prevent it from being pushed back during the drilling operation.

상술한 바와 같은 본 발명은 간단한 장치를 추가하여 타이어의 턴업공정에서 비드부의 에어를 간단하게 배출하도록 함으로서 작업시간의 단축 및 작업효율의 증대를 가져올 수 있을 뿐만 아니라 비드의 철심 배열을 원형으로 유지할 수 있어 제품의 불량율을 최소한으로 줄일 수 있는 효과가 있는 것이다.The present invention as described above, by adding a simple device to simply discharge the air of the bead in the turn-up process of the tire, not only can reduce the working time and increase the work efficiency, but also maintains the iron core arrangement of the bead in a circle There is an effect that can reduce the defective rate of the product to the minimum.

Claims (2)

타이어 비드부의 천공장치에 있어서, 가이드 플레이트(1)에 설치되며 가이드 축(13)으로 안내되어 좌우로 슬라이딩되는 돌출부(112)와 핀 홀(111)을 구비한 턴업 링(11)과, 이 턴업 링(11)의 내부로 설치되며 핀 홀(121)을 구비한 비드 링(12)과, 상기 가이드 플레이트(1)의 외측으로 설치되는 실린더(3)와, 이 실린더(3)에 고정수단(32)으로 고정되는 지지대(31)에 연결되어 상기 가이드 플레이트(1)와 가이드 축(13)으로 결합되는 받침 플레이트(2)와, 이 받침 플레이트(2)에 설치되며 상기 실린더(3)의 작동에 연계되어 턴업 링(11)의 핀 홀(111)과 비드 링(12)의 핀 홀(121)을 관통하는 다수의 비드 핀(21)으로 구성되는 것을 특징으로 하는 자동차 타이어 제조에서 턴업공정시 비드의 천공장치.In the punching device of the tire bead part, a turn-up ring (11) having a protrusion (112) and a pin hole (111) installed on the guide plate (1) and guided to the guide shaft (13) and sliding left and right, and the turn-up; A bead ring 12 provided inside the ring 11 and having a pin hole 121, a cylinder 3 installed outside the guide plate 1, and fixing means (3) to the cylinder 3; A support plate 2 connected to the support 31 fixed to the support plate 32 and coupled to the guide plate 1 and the guide shaft 13, and installed on the support plate 2 to operate the cylinder 3. In the turn-up process in automobile tire manufacturing, characterized in that consisting of a plurality of bead pins 21 penetrating through the pin hole 111 of the turn-up ring 11 and the pin hole 121 of the bead ring 12 Bead punching device. 제 1 항에 있어서, 비드 핀(21)은 타이어 제조의 턴업공정시 턴업 링(11)의 돌출부(112)가 타이어의 재료(4)를 누른 상태에서 비드부(5)를 천공하여 에어를 배출하도록 하는을 특징으로 하는 자동차 타이어 제조에서 턴업공정시 비드의 천공장치.The bead pin 21 discharges air by drilling the bead portion 5 while the protrusion 112 of the turn-up ring 11 presses the material 4 of the tire during the turn-up process of tire manufacture. Bead drilling device in the turn-up process in the production of automobile tires, characterized in that the.
KR1019980015104A 1998-04-28 1998-04-28 Apparatus for punching a bead in turn-up process of tire in a car KR100260801B1 (en)

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KR1019980015104A KR100260801B1 (en) 1998-04-28 1998-04-28 Apparatus for punching a bead in turn-up process of tire in a car

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KR1019980015104A KR100260801B1 (en) 1998-04-28 1998-04-28 Apparatus for punching a bead in turn-up process of tire in a car

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